[Bridge] Bridging VLANs and PVST+
Geoff Wiener
gwiener at aenigmacorp.com
Tue Nov 25 07:37:22 PST 2008
JP;
I've had this very issue. I know that 2.6.24-16 allows PVST BPDUs to cross the bridge. Linux won't speak Cisco PVST+ but it will pass the BPDU's so that Cisco devices on both sides can communicate about the link state.
That has been my experience anyway (long and painful I might add).
G
-----Original Message-----
From: bridge-bounces at lists.linux-foundation.org [mailto:bridge-bounces at lists.linux-foundation.org] On Behalf Of João Pedro
Sent: 25 November 2008 3:31 PM
To: bridge at lists.linux-foundation.org
Subject: [Bridge] Bridging VLANs and PVST+
Hello,
Two years ago there was a post regarding a patch to the Linux kernel
allowing it to bridge of two VLANs with Cisco's PVST+
(https://lists.linux-foundation.org/pipermail/bridge/2006-May/004921.html). I
tried contacting both Gergely Madarasz (the author of the patch) and
Ian Schwimmer (who started the thread) without any luck.
Does anyone has this patch? Or, for that matter, a solution on how to
do this? I'm currently using ebtables on SLES10SP2 to DROP the
switch's BPDUs, avoiding it from shutting down the port; I have also
changed the bridge's ULA in order to use "per-vlan" STP. This
situation if far from ideal, of course: it would be great to have STP
working between the Linux box and the Cisco switch (or any other
switch), allowing it [the Linux Box] to "fail-to-wire" if something
was to go wrong.
Thank you,
JP
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